8144238 has 16 divisors (see below), whose sum is σ = 16321536. Its totient is φ = 2709240.

The previous prime is 8144237. The next prime is 8144261. The reversal of 8144238 is 8324418.

It is a super-2 number, since 2×8144238² = 132657225201288, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8144233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2803 + ... + 4913.

It is an arithmetic number, because the mean of its divisors is an integer number (1020096).

Almost surely, 2^8144238 is an apocalyptic number.

8144238 is an abundant number, since it is smaller than the sum of its proper divisors (8177298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8144238 is a wasteful number, since it uses less digits than its factorization.

8144238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759.

The product of its digits is 6144, while the sum is 30.

The square root of 8144238 is about 2853.8111360074. The cubic root of 8144238 is about 201.1948310129.

The spelling of 8144238 in words is "eight million, one hundred forty-four thousand, two hundred thirty-eight".